Knife and scissor sharpener



FIG. 1 is a front and top perspective view of a knife and scissor sharpener showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a right side elevation view thereof; and,

FIG. 7 is a left side elevation view thereof.

The broken lines depict portions of the knife and scissor sharpener in which the design is embodied that are not considered part of the claimed design. 

CLAIM The ornamental design for a knife and scissor sharpener, as shown and described. 